Some lawmakers want national healthcare reform to include new constraints on health savings accounts, a move that banks and insurance companies warn could discourage saving at a time when it is needed more than ever. Proposals in the Senate would set tighter limits on contributions to HSAs, and would require more oversight of how money in them is spent. Annual contribution limits this year are $3,000 for individuals and $5,950 for families, but one proposal would reduce it to the deductible on an account holder's health insurance plan, if that deductible is less.